82165721 is an odd 8-digits composite number following 82165720
and preceding 82165722 . In scientific notation, it is written as 8.2165721 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 74340000 positive integers (up to 82165721) that are relatively prime to 82165721.
82165721 has 8 divisors, whose sum is 90062688
The reverse of 82165721 is 12756128
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-two million one hundred sixty-five thousand seven hundred twenty-one
Scientific notation
8.2165721 × 10^7
Engineering notation
8.2165721 × 10^6
Prime Factorization
11 × 211 × 35401
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
82165721
Product of the distinct prime numbers
The prime factorization of 82165721 is 11 × 211 × 35401.
Since it has a total of 3 prime factors.
10 , 5 , 89 , 61 , 554 , 246 , 6872 , 3720 , 95399 , 57881 , 200273 , 469389 , 3673985 , 6895258 , 18284646 , 83094067 , 518902786 , 428008024 , 4324706501 , 7867394979
n×2
164331442
n×3
246497163
n×4
328662884
n×5
410828605
n÷2
41082860.5
n÷3
27388573.666667
n÷3
20541430.25
n÷5
16433144.2
n2
6751205707449841
n3
5.5471768457193E+23
n4
4.5578778504303E+31
n5
3.7450131981054E+39
2 √n
9064.5309310521
3 √n
434.74062310615
4 √n
95.207830198215
5 √n
38.277021324477
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-82165720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 82165721 can be divided by 8 positive divisors.
The sum of these divisors (counting 82165721) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111001011011111111011001
3
Ternary
12201121110011212
4
Quaternary
10321123333121
5
Quinary
132013300341
6
Senary
12053032505
8
Octal
471337731
10
Decimal
82165721
12
Duodecimal
23625735
16
Hexadecimal
4e5bfd9
20
Vigesimal
15dae61
36
Base36
1cx3h5
md5
e1d5baf948c9ae8e2ae009dd50174785
sha1
61b6af290ac6535cfd79a5e295b0c26937fa7ab3
sha256
cfd9efe9f073a3c14649a47f151e275df43a2f3ae6c889e0ae2030b7b279b5e2
sha512
ff1afb978ee6f0277d088a44536f51fd8884656d533b31b0ff6a9b1fbb814a809adf75f92f940a24a8d60c31ef5e67542287877cdadbd283ceeb6a3e77ac9deb
ripemd-160
388f8790a35346cba1e22adcc8d3c5ed0f5298bf
Diameter
164331442
Circumference
516262450.94102
Area
2.1209538253398E+16
Volume
2.3235960035567E+24
Surface area
8.4838153013592E+16
Circumference
516262450.94102
Perimeter
328662884
Area
6751205707449841
Diagonal
116199877.00036
Surface area
40507234244699046
Volume
5.5471768457193E+23
Space diagonal
142315203.41253
Perimeter
246497163
Area
2.923357824413E+15
Altitude
71157601.706265
Surface area
2.923357824413E+15
Volume
6.5374106067485E+22
Height
38733292.333455